Electric arc lamp



(No Model.) 2 Sheets-Sheet 1. J. E. WO'OLVERTON. ELECTRIG ARC LAMP.

No. 527,229. Patented Oct. 9, 1894.

(No Model.) 2 Sheets-Sheet 2. J. E. WOOLVERTON.

ELECTRIC ABC LAMP.

Paented Oct. 9, 1894.

. m'nn JH" l Jill JOHN E. WOOLVERTON'OFNW YO N.y. AssieN eR To T E AEREACL wooLVER'roN- EoTRro COMPANY, OF SAME AoE i ELEGTRo AR c L MP.

;sphcmohzon fmrgpert 'of :Let-ters; Patenfi Nd 5293229, lartedflctobere, 1 89 2. v

.Applieetion file& hpil*13,`l84i semure. 507353. mamam I To all whom; itmay cauca ?n i Beit known 'that I; JOHN WO LVERT a'eitizen' of theUnited States, residing in' theeity, County, end. State of jNew York,have inverted an Improvement in Eleetrie-Are Lmps, 'of whichthe'followingis' aspeeifieaw earbon holding seeke'ts &each of which has'e project-ing plate or fiange 31:0- which is Con- I neeted-'a link Fthati's pivote at its upper end to the T-head G of 'the Slidingtube G',which 'letters ?ateist Ne. .5l4,83,grehted' to ime lfebrnery1894,'*four-ea`rbon's are rep: resente in 'substantially the semepleneand arrange'i pairs, the' earbons in eaehparir eonverging and stopping'against "each 'other endthe pa'irs of'earborsheingseparable to draw theare by' the action or the current passing through an electro-magnet,`andin my application Serial Ne. 4995592, filed February :95 1894, 'the fourearbons' are represehted as" coming together in thev formof an inv'e'rt'ed i pyra mid, the two carhois in eaohpair stopping ihe one;against the other as they are'fed down and the' ea rbos being separablebythe aetiojnof themagnet throigh which the cirenit passes.

i In the'present improyements ;ne earbons are 'brought together in -theform of a pyt-a mid an@ separated bythe aetionfiof .theour- 4 rentpassing through 'an .electro-magnet, and

` .fea turesofconstruetioh hreinaft'e'r set forh,

my pres'entinvention relatesto thbpeeuliar .whereby the lanp is renqeredcompaet 'and facility given ior the insertioiofithe earbons ndfor'maintaining the proper relative position of such earbons by asimplemeehnism that is'iot liabletobeeome obstrueted by friction or thepresence of dust or any 'for 'In thedrawings Fig-relisa. -plahviw of.Thebaseplate A is ofsuitable size for rethe lamp adapted to receivefoureerbons.

Fig. 2 is a 'similar plan yiew with three ear .bons. 'Fig.`3 is anele'vaon sdewise of the frame. Fig 4 is a' seetional elevation of the rable inelo'sing case maybe provided, as represented by the dotted linesat C, Fig. 4. At one side of the base plate A the' arms A'exted outandreeeiveupon them the inas the partsaureliberated the erbons win slide rsulated &I'Oh' flllilll6 D to which are' permua- ---ne ntly conneetedthe'oarbon holdere E 'E `-whieh are imthe "form of 'mbes js ufii eientllarge for `reeeiving the "car-bone'. and these .t bes are slettedlngitudinally from end to .end so as to receive within-them' the sliingtribe surronnds and slidesfreely upon `the stationary'gnide bar H whichis 'fassene at;

the'top end* to the mb fremeD nd eni-fike u bottom ,end by the bars Itothe serben hold- `geosly such thatwheh the Thead" G' is guide-bar H, theorbohholdingsoekets e are at the extreme upp'er enoffthe holclrs E E'and hence-theearbofis 'can be insertedinto or i fihroigh the soekets e,and the holders E E'. bei ing open gat their upper ende, allow for'theear- -bons projeoting through the so'ck'e'ts it' so dei sired, sofchatany required length ofearbons een he made use of and they-ean beslipped. 1

through the sooketsfrom time to eme as such,

earbonsareonsumed, but usually the arboh holders 'wilrbe the same lengthesthe earbons,

so that When the sockets eme ahthe upper ende ,of the cerbonholdersthecarbons eahbwin trodueed from below andprssed up intoph\ theinsertionohe .other carhori', and as soeri V by gr'avity toward eachother and the movement will bearrested as soon'as thepointspf j`lil/'herefour." carbon holders are 'made use of, I

as'represented in Figsrlend& the second set of' earbon' holders K K'iseohs'trneted in sub stantially the manner 'before described, and

slides down through the carbon holder by gravity and the lower'endthereof feste against the 'stop finger 3,as shown in Fig; 4:,so' thatwhen a single carben iholde'r K? is madeuse of, as 'shown in Fig. %the*tube and socketare constructedthe same as either of the ear# "bonholders before described, 'hmmm carbon as ers,`whieh bars also serve to'eonnechthe earv *bon holders and retain them at the proper i ldistaneesapart. 4

85 soekets, audone 'em-bon Will not interfere with the carhon will notslip out but will slide down tro-nagnets, the levers, and the dash-pot,the

gradually esthe lower, endtthereof is consumed. e The iframe L,'Figs. 1and '3, is pivoted at 4:,

5 and the carbon holders KK' are pe'rmanently y i connected therewithand preferabiy insulated i therefrom; and the frame L is swung upon itshinges to'separate; the carbon in the carbon holders K K' from thecarbons in the holders E E' by the action of the` electro-magnetashereinafter described, "and the plate L' is hingedor pivotedat 5, asseen in -Fig.. 2 so that the single'carbon in the'holde'r K is moved inasimilar manner. `5 The electro-magnet M isin the main circuit betweenthe binding post G and the^carbon holders E E', so that the currentpasses from 6 through M and E' and by the carbon holders K' to thebind'in'g* post 7, and the Shunt z o magnet Niset' high-resistaticeandisjbetween, the lrindiug posts 6 and 7, and bothof" these magnets Ma'ndN 'are provided with sliding 'core's O O' that are connectedwithsthe lever P, the pivot 8 ofwhich is preferabl'y npon the magnet 'M-as indicated, and-one end of.

the leverP has a connecting r'od `9 to a pis 4 ton in the dash-pot Qwhich acts to prevent the notion of the magnet cores being too sudden',and there is a lever R pivoted at- 10 and'connected at one end with thecore O of the magnet 'M and at the other end' by a screw rod ll 'withthe 'fi-ame `L` or plate L'.- It will now be unders tood that the' shunt'through the-magnet N maintains the electrcfl 3 5 circuit, and themagnetism in N 'acts in the opposite direction to the' magnetism in M,andwhen themaguetisn in M increases' in consequence of thecurrentpas'sing through the carbon holders and. carbons, the core of 40the 'magnet M acts to separate the carbons and increase theresistance inthe ch-enit:

passingthroigh the magnet M, and the parts areto beTadjusted :by the'nuts on the screw rod 11, so that the proper .length of arc will bemaintained by the relative magnetisn in .the helices M and. N. e

4 In Figs. 2 and 5, I have represent'ed a cut'-` Iout S the helix ofwhose electro-magnet'isin the main line circuit passing throughthemagnet`M and earbons, and 'the armature 12 closes the circuitthrough'the Shunt magnet N when the current passing through'the carbonsis too great y -By this'improvenent the iamp'is simplifi d 5 5" inits'construction so' as 'to be"compa ,1;i 1

inexpensive and the carbons are easily intro-j duced or replaced, andvery little' attention is required in maintaining the 'lamp in the 'mosteflicient working condition, and the car 6o` bons coming together as anuverted pyramid,

. 'but little shadow is cast downwardly by any portion of the iamp, andwhere three carbons are 'made use of the Consumption will i be ieariyuniform if the circuit conn'ections are made in such a manner that thetwo carbons` 'are connected with the -l binding post, and in consequenceof the'arrangeme nt of theelecits motion directly from the core of themagtrolled by the. electro-magnet N acting'upon the lever P inconnection with the piston of the dash-potQ to which such lever P isalso connected.

- I claim as my inventiont t l. In an electric arc lam p,theelectro-magnet helix M in the main circuit, and the electromagnethelixN in the Shunt circuit, in .combin-ation with the respective' coresO and O', the lever P with which such cores are `from its pistonto theleve r P, the carbon hold ers converging to the apex of an invertedpyramid, the hinge connection for the mov ing carbon holder, a leverreceiving its motion from the core of the main electro-magnet, and anadjustable connection therefronr to the-hinged support for the movablecarbo holder, substantially as' set forth. t

2. The combination in an electric arc lamp, of two fixednovering tuhularcarbouholders slotted -longitudinally throughout their i length, carboreceiving sockets movable longitudinally in the holders, an arch 'raneand hinged linksextcndihg from the T-head to the sockets, substantiallyas set-forth.

3. ;The combination in an electric arc'lamp, of two fixed convergingtubular carbon holder's slotte'd lougitudinally throughout theirgitudinallyin theholders, an arch iframe and guide-bar` rigidlysupported and connected guide-bar and having a T-head,*hinged links'extending from the T-head to the sockets, a hinged plate andcarborholding tube therewith connectecha stop finger at the lower end'of the tube, and an .electromagnet acting upon the hinged plate to drawthe arc, sub stantiallyas set forth.-

4. The combinationiu an electric arc lamp, 'of a base plate having armsprojecting at one side thereof and a suspending frame above the `baseplate, an arch frame permanen'tly con;

tubular carbon holders slotted longitudinally i and convergingat their'lower ende, a' guide' bar connected with' the arch f-rame and with thecarbon` holders, a tube sliding upon the guide bar and having aT-head,sliding sockets for the carbons within the carbon holders, hingedlinks connecting.-the T-head of the tube and the sockets for insuringnniformity cuit, asliding core and alever engaging therewith and aconnection therefrom to thehinged frame for drawing the arc, a shuntmagnet and its core, a lever connection between the `leverwhich'controls the electric are receivcs' net-M, but the movements'ofthis are conand guide-,bar rigidly supported and con-t I nected with thecar-hon holders, a tube sliding on the guide-bar and having a T-head,

connected', the dash-pot and the connection IOO length, carbon receivings'ockets movable lonwith the carbon holders, a tube sliding on the IIo'nected to the arms but,insuiated therefrom,

in the feed ofthe carbons, a frane hinged to said core and the core'ofthemain line magnet for i'egnlating the length of the eleetrio are, anda 'dash-pot and a, connection from the pston thereof to the lever forregulatng 75' the rapidtyof movement of the parts, sub..

`Sta ut-,truly `as set. forth '5. T he combination in an electricarclamp, of 'a base plate having ernis projecting at one the base plate,an arch france pernanently connected `,to the arms but I insulatedtherefrom, tnbu1ar` carbo n holders slotted -longithdinally andeonverging at their'lower ende, a'guidc-bar connected with the .archfrane and with the car-bon ho1ders-,' a tube sliding npon .the 'guidebarand. having a, T-hea'd ;elidingsockets for the carbons .within thecat-bon holders,"hinged links connecting the` T-head of the tube'and thesockets-for ingo enring nniforrnity in the feed of the ear-bone;

a frame hnged to the base'plate, and a carside'thereof 'and a'nspendingfrance above.

bon holder carried thereby, an electro-'magnet in 'the main e'ircuit, asliding core and a lever' engaging tle'ewith and a, connection therefromto the hingea frame for drawing the are, 25 a Shunt' magnet and itscore, a lever connec-- tionbetween the said core and-the core of themain' line magnet for regnlating the length of the eleotric are, adash-pot and a connection from the pisten thereof to the lever for 30r'egnlating the rapidity-of movement of the parts, a cnt-ont magnet, thehelix of which is in the main circu-t, and the Shunt magnet cit-enitpassing through the armature and contact of-sad cut out magnet,snbstantially 35 as set for-th.

Signed by me' this 7th gay of April, 1894:.

JOHN E WOLVERTON witnesses:

GEO. T. PINOKNEY,

AM. OLIVER.

